Is it possible that they have been sent but just not deleted? Due to the proxy I have running the client uploads the data but does not recieve an acknowledgement from the servers, so saves the data to file. I am getting the results showing in stats, but the client thinks that have not been sent. As the client is only set to queue 10 workunits it overwrites the queued units that have not been sent. Because of the lost crunching time involved with the client trying to send "all" the finished units everytime it connects, I am having to delete the saved units every couple of days.